public final class OwnCacheKeyMultiReader extends MultiReader
MultiReader
that has its own cache key, occasionally useful for
testing purposes.IndexReader.CacheHelper, IndexReader.CacheKey, IndexReader.ClosedListener
Constructor and Description |
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OwnCacheKeyMultiReader(IndexReader... subReaders)
Sole constructor.
|
Modifier and Type | Method and Description |
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IndexReader.CacheHelper |
getReaderCacheHelper()
Optional method: Return a
IndexReader.CacheHelper that can be used to cache
based on the content of this reader. |
doClose
docFreq, document, getDocCount, getSequentialSubReaders, getSumDocFreq, getSumTotalTermFreq, getTermVectors, maxDoc, numDocs, readerBase, readerIndex, totalTermFreq
getContext, toString
close, decRef, document, document, ensureOpen, equals, getRefCount, getTermVector, hasDeletions, hashCode, incRef, leaves, numDeletedDocs, registerParentReader, tryIncRef
public OwnCacheKeyMultiReader(IndexReader... subReaders) throws java.io.IOException
java.io.IOException
public IndexReader.CacheHelper getReaderCacheHelper()
IndexReader
IndexReader.CacheHelper
that can be used to cache
based on the content of this reader. Two readers that have different data
or different sets of deleted documents will be considered different.
A return value of null
indicates that this reader is not suited
for caching, which is typically the case for short-lived wrappers that
alter the content of the wrapped reader.
getReaderCacheHelper
in class MultiReader
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